I have one of these. You can't upgrade the RAM over 8GB on these, unlike newer models. I upgraded from 4GB to 8GB within a year of purchase, and to a Crucial M4 SSD two years ago. It's still fast and very functional, and I use it daily. Would it last another 5 years ? I don't know. The graphics chip is known to be flaky, and if the logic board goes, that's money to replace. I'm also pushing it on the battery cycles department, still on original battery. You'll therefore need at least the 8GB RAM, SSD and probably a new battery, unless you keep it plugged in almost all the while.